WO2013156572A1 - Procédé de production d'un dentier - Google Patents

Procédé de production d'un dentier Download PDF

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Publication number
WO2013156572A1
WO2013156572A1 PCT/EP2013/058111 EP2013058111W WO2013156572A1 WO 2013156572 A1 WO2013156572 A1 WO 2013156572A1 EP 2013058111 W EP2013058111 W EP 2013058111W WO 2013156572 A1 WO2013156572 A1 WO 2013156572A1
Authority
WO
WIPO (PCT)
Prior art keywords
tooth
blanks
tooth blanks
prefabricated
digital image
Prior art date
Application number
PCT/EP2013/058111
Other languages
German (de)
English (en)
Other versions
WO2013156572A8 (fr
Inventor
Mario Beyer
Uwe Böhm
Original Assignee
Heraeus Kulzer Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heraeus Kulzer Gmbh filed Critical Heraeus Kulzer Gmbh
Priority to CN201380020909.7A priority Critical patent/CN104244863B/zh
Priority to CA2867771A priority patent/CA2867771A1/fr
Priority to EP13716813.4A priority patent/EP2838465B1/fr
Priority to AU2013251122A priority patent/AU2013251122B2/en
Priority to JP2015506240A priority patent/JP6407142B2/ja
Priority to ES13716813.4T priority patent/ES2687819T3/es
Priority to US14/390,299 priority patent/US9907630B2/en
Priority to KR1020147031023A priority patent/KR101682285B1/ko
Publication of WO2013156572A1 publication Critical patent/WO2013156572A1/fr
Publication of WO2013156572A8 publication Critical patent/WO2013156572A8/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/0003—Making bridge-work, inlays, implants or the like
    • A61C13/0004—Computer-assisted sizing or machining of dental prostheses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/0003—Making bridge-work, inlays, implants or the like
    • A61C13/0006—Production methods
    • A61C13/0019—Production methods using three dimensional printing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/0003—Making bridge-work, inlays, implants or the like
    • A61C13/0022—Blanks or green, unfinished dental restoration parts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/08—Artificial teeth; Making same
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/10—Fastening of artificial teeth to denture palates or the like
    • A61C13/1003—Fastening of artificial teeth to denture palates or the like by embedding in base material
    • A61C13/1013—Arch forms
    • A61C13/1016—Methods or apparatus for mounting, holding or positioning a set of teeth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/20—Methods or devices for soldering, casting, moulding or melting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/0003—Making bridge-work, inlays, implants or the like
    • A61C13/0006—Production methods
    • A61C13/0013—Production methods using stereolithographic techniques
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H20/00—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance
    • G16H20/40—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture

Definitions

  • the invention relates to a method for producing an artificial denture.
  • partial or full dentures which can be removed if necessary reversibly from the jaw.
  • the partial or full dentures are connected by vacuum, adhesion or screws with the jaw or an implant introduced in the jaw.
  • Such prostheses have a base that comes to lie on the tooth tissue.
  • a base element On that basis - also referred to as a base element - individual teeth are applied, which replace the natural teeth.
  • the positioning and insertion of the artificial teeth in the base element has proven to be problematic in the prior art.
  • the artificial teeth used are pre-assembled. In this respect, the artificial teeth must be shortened to the lengths used.
  • the object of the present invention is to overcome the abovementioned disadvantages.
  • a method is to be disclosed, with which it is possible to produce artificial dentures for a large number of people without running the risk that in the individual adaptation of the dental blanks these can be damaged to such an extent that the durability of the denture weakened lasting becomes.
  • a negative mold and an artificial dentition are proposed to solve this problem.
  • Embodiment 1 A method for producing an artificial denture, wherein the artificial denture has a base element which holds at least two dental blanks, with the steps:
  • Embodiment 2 Method according to the preceding embodiment, characterized in that an application-based computer-aided manufacturing method is used to create the negative mold, in particular that the applying computer-aided manufacturing method is selected from the group consisting of: rapid prototyping, SD lithography, SLM (selective Laser melting), 3D stereolithography, 3D-lnkjet, FDM (Fused Deposition modeling) and 3D laser lithography or at least two of them.
  • Embodiment 3 Method according to at least one of the preceding embodiments, characterized in that the prefabricated tooth blanks are held positively and / or positively and / or cohesively in the negative mold.
  • Embodiment 4 Method according to at least one of the preceding embodiments, characterized in that the method comprises the step: • Creating a fastening means for connecting the shortened tooth blank with the base part, wherein the fastening means comprises a first coding means which enables a spatially unique positioning of the shortened tooth blank in the base part.
  • Embodiment 5 Method according to at least one of the preceding embodiments, characterized in that the negative molds are provided with at least one second coding means which enables a spatially unambiguous positioning of the prefabricated tooth blank in the negative mold.
  • Embodiment 6 Method according to at least one of the preceding embodiments, characterized in that the method comprises the following steps:
  • Embodiment 7 Method according to at least one of the preceding embodiments, characterized in that the method comprises the following steps:
  • the negative mold encoding the position of the at least two prefabricated tooth blanks on the base element, e. Machining the negative form, using the digital image of the negative form, f. Inserting the prefabricated tooth blanks into the negative mold,
  • Embodiment 8 Method according to one of the preceding embodiments 6 or 7, characterized in that in step b) the selection is made from a set of digital representations of prefabricated tooth blanks in order to achieve the smallest possible deviation of a geometrical shape of the prefabricated tooth blanks from the tooth situation.
  • Embodiment 9 Method according to one of the preceding embodiments 6 or 7, characterized in that in step b) the selection is made from a set of digital representations of prefabricated tooth blanks in order to achieve the smallest possible deviation of a geometrical shape of the prefabricated tooth blanks from a predefined tooth arrangement ,
  • Embodiment 10 Method according to at least one of the preceding embodiments 6 to 9, characterized in that in step c) the selected digital representations of prefabricated tooth blanks are arranged as a dental arch.
  • Embodiment 1 1 Method according to at least one of the preceding embodiments 6 to 10, characterized in that in step c) outgoing of the tooth situation and / or a predefined tooth arrangement the selected, digital representations of the tooth blanks are arranged on a crown side along a tooth line.
  • Embodiment 12 Method according to at least one of the preceding embodiments 6 to 12, characterized in that after the step b) the method comprises the step of: adjusting a height position of the digital representations of the prefabricated dental blanks in the digital model of the artificial dentition.
  • Embodiment 13 Method according to at least one of the preceding embodiments 6 to 12, characterized in that the method comprises the step of: computer-assisted dividing the digital model of the artificial dentition into a digital image of the basic element and a digital image of the at least two dental blanks.
  • Embodiment 14 Method according to the preceding embodiment 13, characterized in that the digital image forms a negative for the negative form.
  • Embodiment 15 The method of the preceding embodiment 13, characterized in that the method comprises the step of: machining the base member based on the digital image of the base member.
  • Embodiment 16 Method according to at least one of the preceding embodiments, characterized in that the negative mold is provided with at least one positioning element in order to enable a positioning of the negative mold in the machine shortening of the length dimension.
  • Embodiment 17 Method according to at least one of the preceding embodiments, characterized in that the base part comprises a material or consists of a material selected from the group: polyethylene, polypropylene, polystyrene, poly (methyl methacrylate), acrylonitrile-butadiene-styrene Copolymer, epoxy or acrylates.
  • Embodiment 18 Method according to at least one of the preceding embodiments, characterized in that the base part and the shortened tooth blanks are non-positively and / or positively and / or materially connected.
  • Embodiment 19 Method according to at least one of the preceding embodiments, characterized in that a fastening means serves to connect the base part and the shortened tooth blanks, wherein the fastening means is selected from the group comprising: an adhesive, a mechanical connecting means, a screw, a thread, a pin, a bayonet catch or at least two of them.
  • Embodiment 20 Method according to at least one of the preceding embodiments, characterized in that an ablating and / or applying computer-aided manufacturing method is used in at least one of the method steps selected from the group consisting of: machine-forming the negative mold, shortening the length dimension and machining the machine base element.
  • Embodiment 21 Method according to the preceding embodiment 20, characterized in that the applying computer-aided manufacturing method is selected from the group consisting of: rapid prototyping, 3D laser lithography, 3D lithography, SLM (selective laser melting), 3D stereolithography, 3D-lnkjet , FDM (Fused Deposition Modeling) and 3D laser lithography or at least two of them.
  • Embodiment 22 Method according to at least one of the preceding embodiments, characterized in that, for forming the digital model of the artificial dentition, a digital image of a dental situation is used, which reproduces the shape of a dental tissue area of a patient.
  • Embodiment 23 Method according to at least one of the preceding embodiments, characterized in that the digital model is obtained by scanning an impression model of the gingival area or by scanning the gum area of a patient.
  • Embodiment 24 Computer-readable medium of the instructions that cause a computer to execute a method according to one of the preceding embodiments.
  • Embodiment 25 Computer with a Computer Readable Data Medium According to the Previous Embodiment 24.
  • the core of the process according to the invention consists in the production of a negative mold.
  • the natural teeth arranged in the jaw of the patient and / or the desired arrangement of the artificial tooth blanks in the mouth constitute the positive.
  • this negative form has all the information about the position and length of the teeth in the patient's jaw.
  • tooth blanks pre-produced in the negative mold are used and are adapted to the required length by means of a removal method.
  • the negative mold thus protects the surface of the artificial tooth blanks pre-produced in the negative mold.
  • Tooth blanks and also ensures that those can be adapted to the desired length.
  • the peculiarity consists in the fact that not individually adapted individual teeth, but a plurality of artificial teeth can be edited in parallel.
  • the fixed holding of the prefabricated tooth blanks in the negative mold ensures increased precision of the tooth length to be achieved in comparison with known methods.
  • any minimum lengths of the tooth blanks are not exceeded, so as not to destroy their multilayer structure.
  • the terms "tooth blank” or "prefabricated tooth blank” are intended to refer to an element which corresponds in shape and appearance to a natural tooth. Such tooth blanks are generally made of plastics. For high-quality dental blanks, a multilayer structure takes place.
  • the layers are individually polymerized in the hot polymerization process: first the dentin core, then the cutting and melting layers.
  • Each of the said elements of the tooth blank can be made of a different plastic. Due to the multi-layer structure, it is possible to customize the technical properties layer-specific. Thus, the cutting melt layer exposed to the high chewing load must be particularly resistant to abrasion. By contrast, the basal neck layer should be less closely networked and easier to detach for optimum bonding to the denture plastic - the plastic of the base element.
  • the term "basal" is understood to mean the root side of the tooth blanks
  • a shortened tooth blank is the basally processed tooth blank or prefabricated tooth blank.
  • the inventive method is used for the production of artificial dentures.
  • artificial dentition is understood to mean, in particular, a partial denture and a complete denture.
  • the simplest version consists of a plastic base - the base element - the teeth to be replaced and curved holding and supporting elements
  • the prosthesis can be strengthened with an integrated wire or bow if necessary.As an alloy for parts of the base element, chromium-cobalt-molybdenum or titanium can be used, as these are particularly compatible with tissue, on which basis plastic and teeth are built Teeth are lost, so often only a complete denture remains as a solution, which finds its hold on the jaw by means of negative pressure, screws and / or adhesion.
  • an order-based, computer-aided manufacturing method be used to create the negative mold.
  • This applying, computer-aided manufacturing method is advantageously selected from the group consisting of: rapid prototyping, 3D laser lithography, 3D lithography, SLM (selective laser melting), 3D stereolithography, 3D lnkjet, FDM (fused deposition modeling) or 3D laser lithography.
  • the said applied manufacturing processes have a plurality of advantages. It is easily possible with them to produce a negative mold based on a digital image of a dental situation. Corresponding computer programs can convert the digital image of the dental situation into a negative form within a short time. In addition, the production-related Deviations from the digital image of the negative form were small.
  • the prefabricated tooth blanks are held positively and / or positively and / or materially in the negative mold.
  • An essential aspect is that the prefabricated tooth blanks are arranged reversibly detachable, but position stable in the negative mold.
  • corresponding cohesive compounds have been found by means of adhesives or magnets that allow a corresponding positioning and holding the tooth blanks.
  • the negative mold is provided with at least one second coding medium, which enables spatially unambiguous positioning of the prefabricated tooth blank in the negative mold.
  • a second coding means can serve as a projection, which engages in a corresponding counter element in the prefabricated tooth blank or communicates with this. This ensures a clear arrangement of the prefabricated tooth blanks in the negative mold. In particular, no vertigo of the front or back of the tooth blanks can occur.
  • the base element is provided with a fastening means.
  • This attachment means serves to hold the shortened tooth blanks in the base part.
  • the fastening means is designed such that it has a first coding means, which allows a spatially unique arrangement of the shortened tooth blank in the base part. It should be ensured that the shortened tooth blanks can be introduced only in a unique manner in the base part and there force and / or positively and / or cohesively arranged.
  • the fastening means and / or the base part is designed such that the shortened tooth blank with a position accuracy of +/- 20 ⁇ , advantageously +/- 10 ⁇ , can be arranged in the base part.
  • the fastening means may have many design variants, such as a bayonet closure, a thread or a pin, which ensure the spatial arrangement of the shortened tooth blanks in the base member.
  • a step a) the digital image of a dental situation is created.
  • a corresponding digital image can be created, for example, with an interoral scanner directly on the patient.
  • the dental situation of the patient is removed with an impression mass and then realized in a positive.
  • Corresponding positives can be digitally imaged with industrial scanners in high precision. Based on this digital image of the dental situation, a computer-aided generation of a digital model of the artificial dentition takes place.
  • an artificial dentition is created individually for the patient using appropriate digital files or models.
  • provision is made for the use and selection of digital representations of prefabricated tooth blanks to be used.
  • the starting point is the idea that only a comparatively small number of prefabricated tooth blanks should be used. These are digitally scanned and made available to the creator of the digital artificial dentition model in a database.
  • the user can use the digital representations of the prefabricated tooth blanks to make the digital model of the artificial dentition.
  • criteria such as size, width and color input in the selection of the prefabricated tooth blanks to be used.
  • a length difference data set is calculated, which results from the difference between the defined length dimension of the prefabricated tooth blanks and an insertion depth of the at least two prefabricated tooth blanks in the base element.
  • the length difference data set thus describes the difference between the "actual” of the prefabricated tooth blanks and the "desired” which they should have when they are inserted into the base element.
  • step b) a selection of digital representations of prefabricated tooth blanks takes place.
  • This selection from a variety of digital representations of prefabricated tooth blanks can be made to achieve the least possible deviation of a geometric shape of the prefabricated tooth blanks from the actual dental situation occurring in the patient's mouth. This is the case when the remaining teeth are removed from the patient in order to use the tooth blanks to be used instead. If the patient no longer has any teeth, the aim must be to select the digital representations of the prefabricated tooth blanks such that the smallest possible deviation of a geometric shape of the prefabricated tooth blanks from a predefined one Tooth arrangement is achieved. Consequently, a tooth blank is selected which optimally fits into the overall picture of the dentition to be created.
  • a further advantageous embodiment of the method according to the invention is characterized by a step d), in the context of which a digital image of the negative mold is constructed.
  • This digital image serves as the basis on which the actual negative mold is later created by means of a machine (see step e)).
  • the negative form encodes the position of the at least two prefabricated tooth blanks on the base element also still to be created.
  • the negative mold thus defines the position of the prefabricated tooth blanks relative to one another and with respect to the element or elements of the base element.
  • the negative mold is created by machine. This machine creation is done by means of the digital information of the digital image of the negative form.
  • a corresponding creation can be made by ablative or constructive, computer-aided manufacturing processes.
  • the following manufacturing processes are mentioned: milling, milling via CAD / CAM, turning, rapid prototyping, 3D laser lithography, 3D lithography, SLM (selective laser melting), 3D stereolithography, 3D lnkjet, FDM (fused deposition modeling) or 3D laser lithography.
  • a shortening of the length dimensions of the prefabricated tooth blanks from a basal side is provided in the course of step g).
  • the already existing prefabricated tooth blanks are introduced in the negative mold as part of step f). Now, the negative mold serves as a holder for the prefabricated tooth blanks.
  • the negative mold Since the negative form is produced on the basis of the desired digital image of the artificial dentition to be created, the negative mold simultaneously encodes the arrangement, length and height of the tooth blanks to be used. When these are inserted, it is easily possible to shorten them mechanically. This shortening on the basal side is done on the basis of the length difference data set. Consequently, the prefabricated tooth blanks are shortened precisely by the amount of length by which they project beyond the desired length. Subsequently, in the context of step h), only a joining of the base element and the shortened tooth blanks to the artificial dentition takes place.
  • the digital model of the artificial dentition is computer-divided into two parts: a digital image of the basic element and a digital image of the at least two Tooth blanks.
  • the goal here is that the basic element is designed computer-aided.
  • this variant allows a very good adaptation of the base element and the tooth blanks or the digital representations of the prefabricated tooth blanks.
  • digital models of fasteners, etc. may be incorporated into the digital image of the base member.
  • the digital representation of the prefabricated tooth blanks is adjusted in position relative to the base member. This adaptation of a height position of the digital representation of the prefabricated tooth blanks enables the construction of the digital model of the artificial dentition on the computer. Also, by adjusting the height position, the length difference data set is calculated because the height position adjustment provides conclusions about the depth at which the prefabricated tooth blanks are to be inserted into the base element later.
  • FIG. 1 shows a flowchart of the method according to the invention
  • FIG. 2 shows a selection of digital representations of prefabricated ones
  • FIG. 3 shows a calculation of a length difference data record
  • FIG. 4 shows an insertion of the prefabricated tooth blanks into a negative mold, Figures 5 and 6, a machine shortening the length dimension of the prefabricated tooth blanks, Figure 7, the shortened tooth blanks, and
  • FIG. 8 shows the connection of the base element and the shortened tooth blanks to the artificial dentition.
  • the starting point for the method according to the invention is the idea of creating a negative mold 50, which serves to hold a plurality of prefabricated tooth blanks 40, 40 ', 40 ", in which case the negative mold 50 is configured in such a way that the tooth blanks 40, 40' , 40 "are positioned as they should actually be arranged in the later artificial dentition 10.
  • the prefabricated tooth blanks 40, 40 ', 40 “have lengths that do not correspond to those that are actually required in the artificial denture 10 that is still to be produced, but the holder in the negative mold 50 precisely shortens the prefabricated tooth blanks 40, 40 ', 40 "possible.
  • the inventive method has the peculiarity that the negative mold 50 is calculated by means of a computer from a digital image of a dental situation 15.
  • the flowchart in FIG. 1 is intended to clarify the various method steps.
  • a digital image of the present dental situation 15 of the patient is created. This can preferably be done by means of an interoral scanner. Subsequently, a digital model 1 1 of the artificial dentition 10 to be created is produced on the basis of the digital image. If, for example, a full denture is to be created, only an image of the gum is generated as part of the digital image of the dental situation. A dental technician must then, based on this image of the gums, digitally create the artificial dentition 15 to be used later. According to the invention, the dental technician can use digital representations 41, 41 ', 41 "of prefabricated tooth blanks 40, 40', 40". As part of step 200, the digital model 1 1 of the artificial dentition 10 is created. By way of example, FIG.
  • step 2 illustrates that a selection is made which of the digital representations 41, 41 ', 41 "of a prefabricated tooth blank 40, 40', 40" most closely corresponds to the intended tooth situation 15.
  • size, length and volume are used as a selection criterion.
  • a length difference data set 72 is determined in step 300. This will illustrate the figure 3. Due to different anatomical conditions, the lengths of the teeth are different in each person.
  • the prefabricated tooth blanks 40, 40 ', 40 "have predefined lengths, however, and it is also known how deep the tooth blanks must be inserted into the base element for a stable and irreversible mounting.This depth, referred to as the insertion depth 74, is predefined and dependent on The dimension of the base member 20. The distance between a base line 70 on which the cutting surface of the teeth is located and a capital line 71 defines the visible length of the prefabricated tooth blanks 40, 40 ', 40 ". This is followed by the insertion depth 74. 3, the prefabricated tooth blank 40 "deviates significantly from this desired tooth length 75 with its actual tooth length 76. The length difference data set 72 from the desired tooth length 75 from the actual tooth length 76 is determined in FIG Calculated frame of step 300.
  • a digital image 51 of the negative mold 50 is created on the basis of the length difference data set 72 and further information about the external shape of the prefabricated tooth blanks 40, 40 ', 40 "and the digital image 11 of the dental situation
  • the digital image 51 makes it possible to machine 500 the negative mold 50.
  • the automated production 500 preferably takes place by applying and computer-aided manufacturing processes such as rapid prototyping 40 inserted, as it represents the figure 5.
  • the female mold 50 of the present invention holds the preformed tooth blanks 40, 40 ', 40 "in a manner that overhangs the female mold 50 at its basal side.
  • the negative mold 50 also ensures mechanical stability and retention of the prefabricated tooth blanks 40, 40 ', 40 "during the shortening process in the context of step 700.
  • FIG. 7 shows the shortened tooth blanks. Those are connected in step 800 to a base member 20 to produce the artificial denture 10 shown in FIG.
  • the artificial dentition 10 thus consists of the base element 20, in which the shortened tooth blanks 40, 40 ', 40 "are arranged.
  • Tooth or tooth situation or predefined tooth arrangement Tooth or tooth situation or predefined tooth arrangement

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Dentistry (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Dental Prosthetics (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

L'invention concerne un procédé de production d'un dentier. Selon l'invention, ce dentier présente un élément de base qui maintient au moins deux ébauches de dent, ledit procédé comprenant les étapes suivantes : production mécanique d'une empreinte sur la base d'une image numérique d'une situation dentaire; réduction mécanique de la longueur des ébauches de dent préfabriquées et maintenues dans l'empreinte, à partir d'un côté de base, pour obtenir une ligne dentaire adaptée à la situation dentaire; assemblage de l'élément de base et des ébauches de dent raccourcies pour former le dentier.
PCT/EP2013/058111 2012-04-19 2013-04-18 Procédé de production d'un dentier WO2013156572A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CN201380020909.7A CN104244863B (zh) 2012-04-19 2013-04-18 用于制作假牙的方法
CA2867771A CA2867771A1 (fr) 2012-04-19 2013-04-18 Procede de production d'un dentier
EP13716813.4A EP2838465B1 (fr) 2012-04-19 2013-04-18 Procédé de production d'un dentier
AU2013251122A AU2013251122B2 (en) 2012-04-19 2013-04-18 Method for producing dentures
JP2015506240A JP6407142B2 (ja) 2012-04-19 2013-04-18 義歯の製造方法
ES13716813.4T ES2687819T3 (es) 2012-04-19 2013-04-18 Procedimiento para la fabricación de una dentadura postiza
US14/390,299 US9907630B2 (en) 2012-04-19 2013-04-18 Method for producing dentures comprising shortening by machining of pre-fabricated tooth blanks
KR1020147031023A KR101682285B1 (ko) 2012-04-19 2013-04-18 의치 제조 방법

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012007706.8A DE102012007706B4 (de) 2012-04-19 2012-04-19 Verfahren zum Herstellen eines künstlichen Gebisses
DE102012007706.8 2012-04-19

Publications (2)

Publication Number Publication Date
WO2013156572A1 true WO2013156572A1 (fr) 2013-10-24
WO2013156572A8 WO2013156572A8 (fr) 2014-06-26

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PCT/EP2013/058111 WO2013156572A1 (fr) 2012-04-19 2013-04-18 Procédé de production d'un dentier

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US (1) US9907630B2 (fr)
EP (1) EP2838465B1 (fr)
JP (1) JP6407142B2 (fr)
KR (1) KR101682285B1 (fr)
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WO2013156572A8 (fr) 2014-06-26
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DE102012007706A1 (de) 2013-10-24
CN104244863B (zh) 2018-10-12
KR101682285B1 (ko) 2016-12-05
CA2867771A1 (fr) 2013-10-24
ES2687819T3 (es) 2018-10-29
CN104244863A (zh) 2014-12-24
KR20150004825A (ko) 2015-01-13
JP2015516851A (ja) 2015-06-18
EP2838465B1 (fr) 2018-06-27
JP6407142B2 (ja) 2018-10-17
US20150066181A1 (en) 2015-03-05
US9907630B2 (en) 2018-03-06
DE102012007706B4 (de) 2019-10-02

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